JP5477018B2 - Hybrid vehicle - Google Patents

Description

  The present invention relates to a structure of a hybrid vehicle equipped with an electric device.

  In a vehicle equipped with an engine in the front, the engine compartment is crushed in the front-rear direction when a forward collision occurs, so that energy in the event of a collision is absorbed. In recent years, in hybrid vehicles that are often used, more electrical devices such as inverters are mounted in the engine compartment in front of the vehicle than in a vehicle that uses only an ordinary engine as a power source. It is necessary to arrange so as not to prevent the absorption of collision energy. Moreover, even when a vehicle collides forward, it is required to prevent damage to high-voltage electrical equipment such as an inverter. For this reason, when the vehicle collides forward, a method of sliding the inverter to the rear side of the vehicle has been proposed (for example, see Patent Document 1).

JP 2009-83591 A

  In the prior art described in Patent Document 1, the inverter is disposed to be tilted forward of the vehicle, and a guide rail is disposed along the tilt. When the vehicle collides, the inverter is disposed along the guide rail at the rear of the vehicle. It is configured to move obliquely upward. However, this configuration requires a large space for mounting the inverter in the engine compartment, making it difficult to mount many electrical devices such as inverters in the narrow engine compartment. There's a problem.

  On the other hand, when the inverter is arranged in the engine compartment without using the guide rail as described in Patent Document 1, there is a case where a force is applied to rotate the inverter when the vehicle collides forward. If the inverter rotates, it becomes difficult to smoothly remove the inverter diagonally upward toward the rear of the vehicle, so that there is a problem that the separation load increases and the inverter case is damaged. There is also a problem that the impact energy cannot be absorbed efficiently because it cannot be separated well.

  An object of the present invention is to effectively absorb collision energy in a hybrid vehicle.

The hybrid vehicle of the present invention includes a casing in which electrical equipment for a vehicle is housed and mounting seats are provided on the respective outer side surfaces facing each other, and an engine compartment. A mounting base on which each receiving seat for receiving the mounting seats of the casing in the front-rear direction of the vehicle is mounted on the upper surface so that the casing is mounted tilted downward toward the front of the vehicle as a direction, When the casing is mounted, the seat surface of the mounting base on the vehicle rear side of the mounting base is such that the end of the mounting seat on the vehicle front side of the casing is in the vehicle front-rear direction with the upper corner of the casing on the vehicle front side. position such that a substantially equal, the mounting is arranged higher than the seat surface of the vehicle front side of the seat of the foundation, prior to the time of front collision of the vehicle The said casing end portion of the vehicle front side of the mounting seat and the upper corner portion by barrier placed in front of the casing in an engine compartment with a substantially vertical side is in contact moves toward the rear side of the vehicle It is configured to be pushed to the vehicle rear side substantially at the same time.

The hybrid vehicle of the present invention includes a casing in which electrical equipment for a vehicle is housed and a mounting seat is provided on each of the opposed outer surfaces, and a casing provided in an engine compartment. Each of the receiving seats received in the front-rear direction is mounted on the upper surface, and the casing has a vehicle front-rear direction position of an end portion of the vehicle front side of the casing. A projection provided at an upper corner of the casing on the vehicle front side so that the position of the casing is substantially the same as the vehicle front-rear direction, and in front of the casing in the engine compartment when the vehicle collides forward before the vehicle wherein the casing of the projection by arranged with a barrier having a substantially vertical side is in contact moves toward the rear side of the vehicle That is configured to substantially be simultaneously pushed toward the rear side of the vehicle by the end of the side and the vehicle front side of the mounting seat of the end portion, characterized by.

  The present invention has an effect that the collision energy can be effectively absorbed in the hybrid vehicle.

It is explanatory drawing which shows the structure of the hybrid vehicle in embodiment of this invention. It is a perspective view which shows the casing of the power control unit mounted in the hybrid vehicle in embodiment of this invention. It is explanatory drawing which shows the power control unit mounted in the engine compartment of the hybrid vehicle of this invention. It is a perspective view which shows the front side detachment bracket and rear side detachment bracket which attach the front side mounting seat of the casing shown in FIG. 2 to a base board. It is explanatory drawing which shows the state which the power control unit mounted in the engine compartment of the hybrid vehicle of this invention removed | separated by the front collision. It is explanatory drawing which shows the power control unit mounted in the engine compartment of the other hybrid vehicle of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, a hybrid vehicle 10 according to the present embodiment houses a transaxle 12 and a power control unit 20 together with an engine, a motor, and the like in an engine compartment 11 provided in front of the vehicle. The upper portion of the engine compartment 11 is covered with an openable and closable engine hood 13. The surface of the engine hood 13 constitutes a part of the outer surface of the vehicle body, and is inclined downward toward the vehicle front along the shape of the vehicle body. The power control unit 20 is attached to the engine compartment 11 so as to be inclined downward so that the gap between the power control unit 20 and the engine hood 13 is large while avoiding the cylindrical transaxle 12.

  As shown in FIG. 2, the casing 22 is a rectangular parallelepiped, and a mountain-shaped plate is formed in the front-rear direction from the side surfaces 22 a and 22 b on the side surface 22 a on the vehicle front side and the side surface 22 b on the vehicle rear side facing the side surface 22 a. The front side mounting seat 23 and the rear side mounting seat 24 are provided so as to protrude from each other.

  As shown in FIG. 3, the engine compartment 11 includes a substantially horizontal vehicle front portion 31a and a vehicle rear portion 31b inclined obliquely upward from the vehicle front portion 31a toward the vehicle rear. A base plate 31 that is a base is fixed, and a front side detachment bracket 32 is attached to the upper surface of the vehicle front portion 31a of the base plate 31 by bolts 34 and nuts 35, and is attached to the upper surface of the vehicle rear portion 31b of the base plate 31. The rear side separation bracket 33 is attached by a bolt 34 and a nut 35. A front mounting seat of the casing 22 of the power control unit 20 in which an electrical component 21 such as an intelligent power module (IPM) or a capacitor is housed on each upper surface of the front side release bracket 32 and the rear side release bracket 33. 23 and the rear side mounting seat 24 are respectively attached by bolts 25. The vehicle rear portion 31b to which the rear side release bracket 33 of the base plate 31 is attached is configured to be higher than the vehicle front portion 31a to which the front side release bracket 32 is attached, and the rear side to which the rear side mounting seat 24 of the casing 22 is attached. The upper surface of the side release bracket 33 is configured to be higher than the upper surface of the front side release bracket 32 to which the front side mounting seat 23 is attached. Then, when the mounting seats 23 and 24 of the casing 22 are attached to the upper surfaces of the detachable brackets 32 and 33, the casing 22 is attached to the hybrid vehicle 10 in such a manner that its front is inclined downward.

  As shown in FIG. 3, when the casing 22 is attached to the hybrid vehicle 10 in this manner, the front end of the front mounting seat 23 of the casing 22 and the upper corner 22 c of the casing 22 on the front side of the vehicle The positions in the vehicle front-rear direction are substantially the same positions, and both are positions along the vertical line 40 shown in FIG.

  As shown in FIG. 4, the front-side release bracket 32 and the rear-side release bracket 33 are made up of pedestals 32c and 33c having inverted groove shapes and flanges 32a and 33a projecting on both sides of the pedestals 32c and 33c. I have. The flanges 32a and 33a have slits 32b and 33b that are smaller than the head of the bolt 34 that attaches the front-side release bracket 32 and the rear-side release bracket 33 to the base plate 31 and wider than the threaded portion of the bolt 34, respectively. It is provided so that it may open. Further, the upper surfaces of the cradles 32c and 33c are flat and are flat receiving seats for receiving the front mounting seat 23 and the rear mounting seat 24 of the casing 22. Further, holes 32e and 33e through which the bolts 25 shown in FIG. 3 pass are provided in the center of the cradles 32c and 33c.

  When the hybrid vehicle 10 to which the power control unit 20 is attached collides forward as described above, as shown in FIG. 5, the engine compartment 11 is crushed in the vehicle front-rear direction by the impact of the collision and absorbs the impact. Then, for example, the barrier 41 disposed in front of the power control unit 20 moves toward the power control unit 20 as indicated by a white arrow. As shown in FIG. 5, when the barrier 41 moves to the mounting position of the casing 22 indicated by a two-dot chain line, the barrier 41 is approximately at the upper corner portion 22 c of the casing 22 and the front end of the front mounting seat 23 on the front side of the vehicle. At the same time, the casing 22 starts to push the casing 22 substantially horizontally toward the vehicle rear side.

  As described with reference to FIG. 4, the slits 32b and 33b provided in the front and rear separation brackets 32 and 33 are each provided with an opening toward the vehicle front side. When an impact force directed toward the rear of the vehicle is applied to the direction portion 22c and the front side mounting seat 23, the detachment brackets 32 and 33 are moved to the rear side of the vehicle together with the casing 22 by the impact force. At this time, the rear side separation bracket 33 moves along the upper surface of the vehicle rear portion 31b of the base plate 31 extending obliquely upward toward the rear of the vehicle, so that the entire casing 22 is gradually inclined rearward and upward of the hybrid vehicle 10. Moving. When the barrier 41 further moves toward the rear of the vehicle, the upper corner 22c of the casing 22 and the front end of the front mounting seat 23 are pushed further toward the rear of the vehicle, 33 separates from the base plate 31, and the casing 22 further moves in a diagonally upward direction toward the rear of the vehicle to a position indicated by an implementation line in FIG.

  As described above, in the hybrid vehicle 10 of the present embodiment, when the vehicle collides forward, the barrier 41 and the like of the power control unit 20 are connected to the upper corner 22c of the casing 22 and the front end of the front mounting seat 23 on the front side of the vehicle. At the same time, a force is applied to move the casing 22 substantially horizontally in the rearward direction of the vehicle. Therefore, when the hybrid vehicle 10 collides forward, the barrier 41 or the like is only the front end of the front mounting seat 23 of the casing 22 on the front side of the vehicle. In this case, no force is applied to rotate the casing 22 so that the casing 22 can be detached toward the rear of the vehicle with a small force. For this reason, when the hybrid vehicle 10 collides forward, the engine compartment 11 is appropriately crushed to effectively absorb impact energy, and since a large impact force is not applied to the casing 22, the casing 22 is damaged even during a forward collision. Can be suppressed.

  Further, in the present embodiment, the power control unit 20 is disposed obliquely with the front facing downward in the empty space between the transaxle 12 and the engine hood 13, so that the gap between the power control unit 20 and the engine hood 13 is increased. It is possible to reduce the damage of the collision object in the event of a collision. Further, since the height of the engine hood 13 can be reduced, the air resistance can be reduced and the design can be made advantageous.

  Another embodiment of the present invention will be described with reference to FIG. Parts similar to those of the embodiment described with reference to FIGS. 1 to 5 are denoted by the same reference numerals, and description thereof is omitted. As shown in FIG. 6, in the hybrid vehicle 10 of the present embodiment, the base plate 31 is a substantially horizontal flat plate, and the power control unit 20 in which the electrical component 21 such as an inverter is housed is substantially horizontally disposed in the engine compartment 11. It is stored inside. A projection 26 is provided in the vicinity of the upper corner 22c of the casing 22 so as to protrude toward the front side of the vehicle. The position of the front end of the protrusion 26 on the front side of the vehicle in the vehicle front-rear direction is substantially the same as the position of the vehicle front-side mounting seat 23 attached to the casing 22 in the vehicle front-rear direction. Both the front end of the vehicle and the front end of the vehicle front mounting seat 23 are positioned along the vertical line 40 shown in FIG.

  When the hybrid vehicle 10 of the present embodiment collides forward, the barrier 41 and the like are placed at the front end of the projection 26 of the casing 22 and the front end of the front mounting seat 23 on the front side of the vehicle, as described with reference to FIG. Contacting substantially simultaneously, the casing 22 is pushed substantially horizontally toward the rear side of the vehicle, and the casing 22 is detached rearward of the vehicle.

  In the hybrid vehicle 10 of the present embodiment, when the vehicle collides forward, the barrier 41 or the like hits the front end of the protrusion 26 on the front side of the vehicle and the front end of the front mounting seat 23 on the front side of the vehicle substantially at the same time. Since a force for moving the vehicle horizontally in the rearward direction is applied, the casing 22 can be detached toward the rear of the vehicle with a small force. For this reason, when the hybrid vehicle 10 collides forward, the engine compartment 11 is appropriately crushed to effectively absorb impact energy, and since a large impact force is not applied to the casing 22, the casing 22 is damaged even during a forward collision. Can be suppressed.

  DESCRIPTION OF SYMBOLS 10 Hybrid vehicle, 11 Engine compartment, 12 Transaxle, 13 Engine hood, 20 Power control unit, 21 Electrical component, 22 Casing, 22a, 22b Side surface, 22c Upper corner | angular part, 23 Front side installation seat, 24 Rear side installation seat, 25, 34 Bolt, 26 Protrusion, 31 Base plate, 31a Vehicle front portion, 31b Vehicle rear portion, 32 Front side release bracket, 32a, 33a Flange, 32b, 33b Slit, 32c, 33c Base, 32e, 33e Hole, 33 Rear release bracket, 35 nut, 40 vertical, 41 barrier.

Claims (2)

A hybrid vehicle,
A casing in which electrical equipment for a vehicle is housed and a mounting seat is provided on each of the opposing outer surfaces;
Provided in the engine compartment, the respective mounting seats of the casing are mounted in the vehicle front-rear direction so that the mounting seats of the casing are inclined in the vehicle front-rear direction and the casing is tilted downward toward the front of the vehicle. A mounting base on which each receiving seat is attached to the upper surface;
When the casing is mounted, the seat surface of the mounting base on the vehicle rear side of the mounting base is such that the end portion of the mounting seat on the vehicle front side of the casing is the upper corner of the casing on the vehicle front side and the vehicle front-rear direction. Are positioned higher than the seating surface of the seat on the vehicle front side of the mounting base so that the positions of the mounting bases are substantially the same, and are disposed in front of the casing in the engine compartment when the vehicle collides forward. The casing having a vertical side surface is configured to be pushed to the rear side of the vehicle substantially simultaneously by the upper corner portion and the end portion of the mounting seat on the front side of the vehicle when the barrier moves and contacts the rear side of the vehicle. Being
A hybrid vehicle characterized by A hybrid vehicle,
A casing in which electrical equipment for a vehicle is housed and a mounting seat is provided on each of the opposing outer surfaces;
A mounting base provided in an engine compartment, and each receiving seat that receives each mounting seat of the casing in the front-rear direction of the vehicle is mounted on an upper surface;
The casing is arranged on the vehicle front side of the casing so that the position of the end portion of the vehicle front side in the vehicle front-rear direction is substantially the same as the position of the end portion of the mounting seat on the vehicle front side of the casing in the vehicle front-rear direction. A barrier provided on the front corner of the casing in the engine compartment at the time of a frontal collision of the vehicle, and a barrier having a substantially vertical side surface moving to the rear side of the vehicle and contacting The casing is configured to be pushed toward the vehicle rear side substantially simultaneously by the end portion of the protrusion on the vehicle front side and the end portion of the mounting seat on the vehicle front side,
A hybrid vehicle characterized by

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